gcd = lambda x, y: y == 0 and x or gcd(y, x % y)


def common(x, y):
  a = []
  b = []
  while x > 0:
    a.append(x % 10)
    x /= 10
  while y > 0:
    b.append(y % 10)
    y /= 10
  outa = 0
  outb = 0
  tmp = list(set(a) & set(b))
  if tmp.count(0) != 0:
    tmp.remove(0)
  if len(tmp) > 0:
    for i in tmp:
      a.remove(i)
      b.remove(i)
    if len(a) == 0 or len(b) == 0:
      return (False, 0)
    a.reverse()
    for j in a: outa = outa * 10 + j
    b.reverse()
    for j in b: outb = outb * 10 + j
    return (True, outa, outb)
  else:
    return (False, 0)
  

for i in xrange(11, 100):
  for j in xrange(i + 1, 100):
    tmp = common(i, j)
    if tmp[0]:
      if tmp[1] * j == tmp[2] * i:
        print i, j